Duolingo ABC Onboarding

The onboarding flow begins with an age input field that activates the primary action button upon entry. Tapping 'Continue' triggers a slide-left transition to a character selection grid, followed by a horizontal carousel of illustrated learning locations. Swiping through the carousel updates the central building illustration, conversational tooltip text, and the primary button label in sync. Finally, selecting a starting point slides up a friendly permission modal featuring the brand mascot.